Publications

COVER: The grass Sorghastrum nutans, one of a dozen plant species that dominate native North American prairies. Biofuels produced from diverse mixtures of prairie plants can provide greater energy yields and environmental benefits than food-based biofuels such as corn ethanol and soybean biodiesel. From Tilman et al. (2006) Photo: Jason Hill

COVER: The U.S. Renewable Fuel Standards require increasing amounts of biofuels be produced annually through 2022. This issue's feature article compares visions from three federal agencies of how and where the biomass needed to meet these goals might be grown. The cover shows two perennial grasses, big bluestem (Andropogon gerardii) and Miscanthus (Miscanthus x giganteus), currently being explored as biofuel feedstocks. From Keeler et al. (2013) Photos: Jason Hill

Tessum, C., J. Marshall, and J. Hill (2012) A spatially and temporally explicit life cycle inventory of air pollutants from gasoline and ethanol in the United States. Environ. Sci. Technol.46: 11408–11417. DOI: 10.1021/es3010514.